Linux: respect use_gconf in Aura

chrome/browser/ui/libgtk2ui/gtk2_ui.cc

Index: chrome/browser/ui/libgtk2ui/gtk2_ui.cc
diff --git a/chrome/browser/ui/libgtk2ui/gtk2_ui.cc b/chrome/browser/ui/libgtk2ui/gtk2_ui.cc
index 2555bada1d214d9ff6da221afcfd31e0fd94964b..a7b18399d9303699129faaaa6b194bfe20bf059e 100644
--- a/chrome/browser/ui/libgtk2ui/gtk2_ui.cc
+++ b/chrome/browser/ui/libgtk2ui/gtk2_ui.cc
@@ -16,7 +16,6 @@
 #include "chrome/browser/themes/theme_properties.h"
 #include "chrome/browser/ui/libgtk2ui/app_indicator_icon.h"
 #include "chrome/browser/ui/libgtk2ui/chrome_gtk_frame.h"
-#include "chrome/browser/ui/libgtk2ui/gconf_titlebar_listener.h"
 #include "chrome/browser/ui/libgtk2ui/gtk2_util.h"
 #include "chrome/browser/ui/libgtk2ui/native_theme_gtk2.h"
 #include "chrome/browser/ui/libgtk2ui/select_file_dialog_impl.h"
@@ -38,6 +37,10 @@
 #include "ui/gfx/skia_util.h"
 #include "ui/views/linux_ui/window_button_order_observer.h"
 
+#if defined(USE_GCONF)
+#include "chrome/browser/ui/libgtk2ui/gconf_titlebar_listener.h"
+#endif
+
 // A minimized port of GtkThemeService into something that can provide colors
 // and images for aura.
 //
@@ -330,8 +333,10 @@ void Gtk2UI::Initialize() {
   LoadGtkValues();
   SetXDGIconTheme();
 
+#if defined(USE_GCONF)
   // We must build this after GTK gets initialized.
   titlebar_listener_.reset(new GConfTitlebarListener(this));
+#endif  // defined(USE_GCONF)
 
   indicators_count = 0;
 }